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Pass -Wa,-mbig-obj in 64-bit mingw builds 

COFF has a 2**16 section limit, and on Win64, every COMDAT function
creates at least 3 sections: .text, .pdata, and .xdata. For MSVC, we
enable bigobj on a file-by-file basis, but GCC appears to hit the limit
on different files.

Fixes PR25953

llvm-svn: 290358
This commit is contained in:
Reid Kleckner 2016-12-22 19:12:14 +00:00
parent 143a937f79
commit c2b56634cf
1 changed files with 7 additions and 0 deletions
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7
llvm/cmake/modules/HandleLLVMOptions.cmake
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@ -232,6 +232,13 @@ if(MSVC)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /STACK:10000000")
elseif(MINGW) # FIXME: Also cygwin?
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--stack,16777216")
# Pass -mbig-obj to mingw gas on Win64. COFF has a 2**16 section limit, and
# on Win64, every COMDAT function creates at least 3 sections: .text, .pdata,
# and .xdata.
if (CMAKE_SIZEOF_VOID_P EQUAL 8)
append("-Wa,-mbig-obj" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
endif()
endif()
if( MSVC )